Flex 求两个ArrayCollection的并集

? ? ? ? ? ? ? ? ? ? ? ???Flex?求两个ArrayCollection的并集

需求：已知两个ArrayCollection求并集

代码如下：

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
	<fx:Script>
		<![CDATA[
			import mx.collections.ArrayCollection;
			import mx.controls.Alert;
			
			public  var arrColl1:ArrayCollection = new ArrayCollection([{WellName:"1"},{WellName:"2"},{WellName:"3"}]);  //第一个集合
			public  var arrColl2:ArrayCollection = new ArrayCollection([{WellName:"2"},{WellName:"3"},{WellName:"4"}]); //第一个集合
			public  var arrTemp:ArrayCollection = new ArrayCollection(); //定义一个临时变量用来存储值
			public  var arrOr:ArrayCollection = new ArrayCollection();     //用来存放arr1和arr2的交集
			
			public function OrOperator():void{
				for(var i:int = 0; i<arrColl1.length; i++) { 
					//Alert.show(arrColl1.getItemAt(i).WellName); 
					var strWellName:String = arrColl1.getItemAt(i).WellName;
					arrTemp.addItem({WellName:strWellName});
				} 
				for(var i2:int=0;i2<arrColl2.length;i2++)
				{
					//Alert.show(arrColl2.getItemAt(i2).WellName);
					var strWellName2:String = arrColl2.getItemAt(i2).WellName;
					arrTemp.addItem({WellName:strWellName2});
				}
				
				//过滤重复的项
				for each(var obj:Object in arrTemp)
				{
					var flag:Boolean = true;
					for each(var item:Object in arrOr)
					{
						if(obj.WellName == item.WellName)
							flag = false;
					}
					if(flag)
						arrOr.addItem(obj);
				}
				
				/*Alert.show("arrOr的值为:"+arrOr.length.toString()); */
				
				//打印出arrOr的值
				var str:String="";
				for(var i3:int=0;i3<arrOr.length;i3++)
				{
					str+=arrOr.getItemAt(i3).WellName;
				}
				Alert.show("str的值为:" + str);
				
			}
			
		]]>
	</fx:Script>
	<s:Button x="187" y="166" width="109" height="38" label="调用函数" click="OrOperator();"/>
</s:Application>